What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Thank you for contacting us.
If you can use a single Check Box for your products, then you can limit selection using Minimum and Maximum selections options.
However, we do not have such limitation options for online payment forms. If you need this for a payment form, you might consider using a form source code with a script for the selection limit.
Please feel free to contact us if you need any further assistance.